| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 560 x 570 x 832 mm | |
|---|---|---|
| Seat height | 470 mm | |
| Seat width | 470 mm | |
| Seat depth | 460 mm | |
| Backrest height | 400 mm | |
| Leg splay width at floor | 520 mm | |
| Seat cushion thickness | 30 mm | |
| Metal leg tube diameter | 20 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Net weight per unit | 11.3 kg | |
|---|---|---|
| Static weight capacity | 120 kg | |
| Upholstery abrasion resistance | 25000 Martindale cycles | |
| Seat foam density | 35 kg/m³ | |
| Foam rebound rate | 45% | |
| Recommended daily use duration | 8 hours | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.0mm thick matte grey PU faux leather | |
|---|---|---|
| Seat and back padding | High-density polyurethane foam | |
| Internal support frame | 1.2mm thick carbon steel inner skeleton | |
| Legs | 1.2mm thick black powder-coated tapered carbon steel tubes | |
| Foot pads | 5mm thick non-slip rubber floor protectors | |
| Seat support board | 8mm thick molded plywood panel | |
| Upholstery stitching | 6 stitches per 30mm seam pitch | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seating function | Fixed upright armless seating for dining height surfaces | |
|---|---|---|
| Floor protection | Rubber foot pads prevent floor scratching and reduce movement noise | |
| Assembly requirement | Knock-down leg attachment with included hardware | |
| Surface maintenance | Wipe-clean upholstery suitable for daily spill removal | |
| Stability design | Four outward splayed legs provide 520mm wide stable base | |
| Stacking capability | Non-stackable fixed structure | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm | |
| Reference Packaged Gross Weight | 23 kg/set | |
| Reference Carton Volume | 0.26 m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Residential dining room | Pairs with 750mm height dining tables for regular family meal seating | |
|---|---|---|
| Kitchen breakfast nook | Compact armless profile fits small kitchen dining spaces without obstruction | |
| Café and bistro seating | Durable wipe-clean surface suitable for light commercial food service use | |
| Home office extra seating | Provides temporary guest seating alongside desks in home workspaces | |
| Meeting room breakout area | Coordinates with modern office interiors for informal collaborative seating | |
| Apartment rental furnishing | Neutral grey finish and durable construction suit multi-tenant residential furnishing | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
EU Market Access Requirements* EN Standards
| EN 12520:2015 | Residential furniture strength, durability and safety requirements for seating | |
|---|---|---|
| EN 1022:2018 | Domestic seating stability test standard for four-leg side chairs |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to seat support components | |
|---|---|---|
| GB/T 24821-2009 | Dining furniture performance testing standards for seating stability and load |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to seat support components; 2. GB/T 24821-2009: Dining furniture performance testing standards for seating stability and load; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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